“There may be ranged among the kinds of glasses those which they call obsidiana for that they carry some resemblance of that stone which one Obsidius found in Æthyopia.”
Holland’s Pliny.
This natural volcanic glass obtains its name, according to Pliny, from Obsidius or, as he is sometimes called, Obsius, who discovered it in Ethiopia. It is very hard, brittle and remarkably vitreous, and is variously coloured black, pink, green, grey, striped and spotted. It was early discovered to be a useful material from which to fashion knives, mirrors and other objects of ornament and use. An ancient Egyptian custom of cutting the dead bodies of their kings and priests with knives of obsidian was followed by the Guanchos of the Canary Islands. The ancient Mexicans used ITZTLI as they called it very generally in the manufacture of various implements. They quarried it from the Cerro de les Navajas or Hill of the Knives not far from Timapau. Pliny, noting that genuine gem stones could not be cut or scratched with obsidian, recommended the use of splinters of the substance for testing purposes. The same author, attesting the report that statues were made of obsidian, says: “I myself have seen solid statues in the material of the late Emperor Augustus of very considerable thickness.” The Greeks and Romans found it an easy material for fashioning into camei and intagli which later were copied in glass. In the 18th century connoisseurs applied the term “obsidians” to all antique pastes. The so-called “Obsidian Bomb” has been much discussed and written about. Professor F. W. Rudley says: “It was believed for a long time to be a variety of obsidian but its different fusibility and its chemical composition are rather against its volcanic origin.” It is known as Moldavite, so-called by Mr. A. Dufrenoy from Moldanthein in Bohemia, where quantities have been found. On account of its olive-like or bottle-green colour it is also called Bottle Stone or Bouteillenstein. Dr. F. G. Suess suggested Tectite from the Greek TEKTOS, melted. Mr. R. H. Walcott called them obsidianites. They have also been termed Australites, Billitonites (from Billiton Island) etc. They were highly regarded by the Australian aboriginal as charm stones in sickness and trouble. Mr. W. F. Chapman, A. L. S., of the Melbourne Museum agrees with Professor Rutley as to the non-volcanic origin of the Obsidianite, and indicates the action of lightning in their formation. In this he would have the support of the ancient student who connects the obsidian with the heavenly Aquarius, the “sign of air.”
OLIVINE. So-called by Werner in 1790. (See [CHRYSOLITE].)
“Called by the onyx round the sleeper stand
Black dreams; and phantoms rise, a grisly band.”
Marbodus.
The onyx derives its name from the Greek ONYX, ONYCHOS a finger-nail, and is as previously stated a variety of chalcedony. It has been variously written as onyx stone, onyx, onix, oniche, onice, onyse. The name of the stone is said to have sprung from the legend which tells that Cupid, finding Venus asleep on the river bank, cut her nails with the sharp point of his arrow. In this story is enwrapped the mystery of earth birth which through love enters the gate of Cancer and with the aid of the moistures, materializes. The same parallel is expressed in the Book of Genesis where it is written that previous to the birth of the world the “Spirit of God moved upon the face of the waters.” This occult philosophy is stressed by the Platonist Macrobius who writes that the soul, descending to the sphere of its spiritual death, the Earth, passes through Cancer, the Gate of Man, and enters under the planetary conditions that influence earth matters, receiving on the way the souls of the planets to whose influence it is exposed whilst manifesting in an earth body. As the soul descends it gathers sensation and earthy feelings from the celestial Leo, and long before its absolutely material birth obtains its first breath of matter. Herein is the mystery of the “two onyx stones enclosed in mountings of gold graven with the names of the twelve tribes of Israel which he put on the shoulders of the ephod that they should be stones for a memorial to the children of Israel, as the Lord commanded Moses.” As previously noted, on one onyx the names of six tribes were engraved, on the other the names of the remaining six, and each tribe was symbolized by a sign of the zodiac. The two onyx stones are the material emblems of the two Gates—the Gate of Cancer and the Gate of Capricorn—through which the self or soul enters and leaves the earth sphere, gathering first and throwing off afterwards, the earth elements from ethereal to gross, from gross to ethereal, as described by Macrobius. Many of the writers of the Middle Ages place the onyx under the signs Cancer and Capricorn and there is no reason to oppose them. The onyx of Cancer is white and light-coloured whilst that of Capricorn is black, the birth of the child is white and bright, and with black and sombre colours those on earth mourn for the earth loss of the departed. So the “coming in” and the “going out” symbolized by the two stones of onyx set in gold, the metal of the Sun, in true talismanic style was the memorial to the children of Israel, as it is to the world’s children forever. Phillips, an author of the middle 17th century, notes an old belief that the onyx is the congealed juice of a tree called Onycha, which is commanded to be used in a sacred way in the 34th verse of the 30th chapter of Exodus, and which Emanuel Swedenborg corresponds to “interior natural truth.” The statement, then, that the onyx is the congealed juice of the onycha is but a cryptic way of expressing the congealing of the waters of generation—a method followed by the occult masters through the ages. Old Rabbi Benoni sees in the onyx a bound spirit which, wakeful by night only, disturbs the wearer in sleep, and the master Ragiel in his “Book of Wings” recommends that a camel’s head or the heads of two goats among myrtles be cut on an onyx to control and constrain demons and to make the wearer see the terrors of the night during sleeping hours. This refers to the dark or Saturnine onyx which is also recommended to be enclosed in a setting of lead (metal of Saturn) and engraved with the figure of a king crowned or a witch seated on a dragon especially in the practice of dark or doubtful occult things. Certain varieties of onyx presenting the appearance of an eye were largely employed as eye stones and it was recommended that such specimens be lightly rubbed over the closed eyelids after work wherein the eyes have been employed. Leonardus of the 16th century says that this onyx enters the eye of its own accord and if it find anything within that is noxious it drives it out and tempers the hurtful and contrary humours. As a higher Saturnine stone the onyx aids spiritual inspirations and helps the wearer to restrain excessive passion. In the writer’s book on “Zodiacal Symbology and its Planetary Power” the first degree of the sign Cancer is symbolized as “a curious ring set with a large heart of white onyx.” The 1st, 2nd, 10th, 11th, 12th, 28th, 29th degrees of Cancer are much influenced by the planet Venus and to these degrees especially applied the white onyx engraved with a figure of Venus, a charm recommended by old masters as a talisman of beauty and strength. It was considered ideal for a baby girl born under those degrees of Cancer according to astro-philosophy. Mr. King mentions a beautifully executed onyx intaglio showing Castor naked, in his hand a large broadsword, weeping over the tomb of Aphareus. The onyx in this case would be of a more sombre hue and would be classed amongst the Saturnine or mourning varieties. The famous Nicolo—known as Ægyptilla by the ancient Romans—was obtained by cutting a blue section surrounded by black out of the stone which then presented a fine turquoise blue with a deep black base. On this stone some of the finest ancient work is found. It is supposed to have obtained its name from the Greek word NIKOLAUS: “Its strange derivation,” wrote Mr. King, "from the Greek was to suit the virtue ascribed to it, as if it meant Victor of Nations. Its modern derivation is from ONICOLO, an Italian word signifying a little onyx. A variety of onyx marble with bands of brown found in the cavern limestone of Gibraltar is known as Gibraltar Stone. Professor Dana mentions the famous Mantuan vase at Brunswick which, cut from a single stone 7 inches high by 2½ broad, takes the form of a cream pot. The colour is brown on which are raised figures of white and yellow, illustrating Ceres and Triptolemus searching for the lost Proserpine. The Saturn side of the onyx is taken by the Arabs who call it El Jaza or Sadness, but the colour was always considered and the varieties were thus identified:—
1. Those resembling the human finger nail, under Cancer.